Connection Network Codes

Demand Connection Code

High Voltage Direct Current Connections

Requirements for Generators

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Implementation Guidance Documents
Archives (old versions of IGDs)
Relevant replies to the public consultations

CNC - Implementation Guidance Documents

Implementation Guidance Documents

Below you will find the latest published implementation guidance documents for the connection network codes.

Automatic connection/reconnection and admissible active power ramp in (updated 2021)

Compliance Verification – Compliance Testing and use of Equipment Certificates (updated 2021)

Cost-benefit analysis

Demand Response – System Frequency Control (updated 2021)

Embedded HVDC systems – frequency schemes in case of system split

Fault current contribution from PPMs & HVDC converters

Frequency Ranges (updated 2021)

Frequency Sensitive Mode

HVDC systems default parameters

High Penetration of Power Electronic Interfaced Power Sources (HPoPEIPS)

Instrumentation, simulation models and protection

Interactions between HVDC systems and other connections

Limited Frequency Sensitive Mode

Making non-mandatory requirements at European level mandatory in a country

Maximum Admissible active power reduction at low frequencies (updated 2021)

Need for synthetic inertia for frequency regulation

Parameters of non-exhaustive requirements (updated 2021)

Parameters related to frequency stability

Post fault active power recovery

Rate-of-change-of-frequency withstand capability (RoCoF)

Reactive power control modes

Reactive power management at transmission/distribution interface

Reactive power requirement for PPMs & HVDC converters at low / zero active power

Real time data and communication

Selection of national parameters for RfG type classification

Special issues for Type A generators

Voltage related parameters for non-exhaustive requirements

Archives (old versions of IGDs)

Automatic connection/reconnection and admissible active power ramp in (version 2018)

Compliance monitoring (version 2017)

Demand Response – System Frequency Control (version 2018)

Frequency Ranges (version 2018)

Maximum Admissible active power reduction at low frequencies (version 2018)

Parameters of non-exhaustive requirements (version 2016)

Relevant replies to the public consultations

Consultation period: 02/12/20 - 31/01/21

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